Ford Modular engine

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4.6L Modular V8 In A 2007 Grand Marquis

The Ford Modular engine, or "mod motor" as it is often referred to, is Ford Motor Company's modern overhead camshaft (OHC) V8 and V10 engine family. It gradually replaced the Windsor small-block and 385 big-block engines over several years in the mid-1990s. Contrary to popular belief, the Modular engine did not get its name from its design or sharing of certain parts among the engine family. Instead, the name was derived from a manufacturing plant protocol, "Modular", where the plant and its tooling could be changed out in a matter of hours to manufacture different versions of the engine family. It is used in Ford trucks, (called the Triton) In Lincolns and Mercury cars (called In-Tech). In 2004 (2002 in Australia) Ford introduced a 3-valve SOHC with a Variable Camshaft Timing (VCT) system, and this engine will eventually phase out the 2-valve SOHC, although it has temporarily replaced a 4-valve DOHC engine in the Lincoln Navigator.

The engines were first produced in Romeo, Michigan but additional capacity was added in Windsor, Ontario.

Inhaltsverzeichnis

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4.6L

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The 4.6L Modular V8 In A 2007 Town Car

The first production Modular engine in the family was the 4.6 L (281 in³) 2-valve SOHC V8 introduced in the 1991 Lincoln Town Car.

Over the years, the 4.6 came in 2-valve, 4-valve, and 3-valve versions (single-, double-, and single-overhead cam respectively). It has also been produced with both iron and aluminum blocks. Bore and stroke are roughly square at 90.2mm (3.552") and 90mm (3.543") respectively. Deck heights for all 4.6 blocks are 227mm (8.937"). Connecting rod length is 150.7mm (5.933") center to center. This gives a respectable 1.67:1 rod to stroke ratio.

Until 1999, all car engines were produced at the Romeo plant. In 1999 and 2000, Mustang engines were produced in Windsor. Production was moved back to Romeo in 2001. Most truck engines are from the Windsor plant, however there are many later model trucks with Romeo engines. All aluminum-blocked engines were produced at Romeo. While the basic design remains the same the two plants had different designs for main bearings, heads (cam caps), camshaft gears (press-on vs. bolt on), valve covers (number of bolts), crankshaft (number of flywheel bolts), and cross bolt fasteners for main bearing caps.

The Modular DOHC was on the Ward's 10 Best Engines list for 1996, while the SOHC was on the list for 2005 and again for 2006.

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2-valve

Vehicles equipped with the cast iron 16-valve SOHC 4.6 include the following:


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4-valve

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The 32V DOHC 4.6L in a Mercury Marauder

The 4-valve DOHC version was introduced in the 1993 Lincoln Mark VIII. It featured an aluminum block, Intake Manifold Runner Control (IMRC) system and cylinder heads with split intake ports. The engine was revised for 1999 with new cylinder heads featuring tumble-style intake ports, new camshaft profiles, and an improved, fixed runner length intake manifold. These changes made for 1999 resulted in not only more peak horsepower and torque but also a much broader powerband.

Vehicles equipped with the all aluminum 32-valve DOHC 4.6 include the following:

  • 1993-1998 Lincoln Mark VIII, 280 hp and 285  ft•lbf
  • 1997-1998 Lincoln Mark VIII LSC, 290 hp and 290  ft•lbf
  • 1996-1998 Ford Mustang, Cobra, 305 hp and 300  ft•lbf
  • 1999/2001 Ford Mustang, Cobra, 320 hp and 317  ft•lbf

Vehicles equipped with the iron-block 32-valve DOHC 4.6 include the following:

  • 2003-2004 Ford Mustang, Cobra, Supercharged, 390 hp and 390  ft•lbf
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3-valve

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The 24V 4.6L V8 In a 2007 Mercury Mountaineer.

A 3-valve SOHC head with Variable Cam Timing (VCT) was introduced in 2002 in 5.4L form for the Ford Falcon (Barra 230) in Australia, and in 2004 for the Ford F-Series, as the new 5.4L Ford Triton Engine. The first 4.6L version appeared in the revised Ford Mustang (2005 model year).

The engines are also equipped with an electronic variable length intake manifold Charge Motion Control Valve (CMCV) system that regulates the flow of air into one of the two intake ports (per cylinder). Block material varies between the aluminum block used in the 2005+ Ford Mustang and 2006+ Ford Explorer and the iron block used in the 2004+ Ford F-Series (see below), though aluminum heads are used in all applications.

The 3-valve SOHC engine was on the Ward's 10 Best Engines list for 2005 through 2007.

Vehicles equipped with the 4.6L 24-valve SOHC include the following:

  • 2005-Present Ford Mustang, 4.6 L, 300 hp and 320 ft•lbf
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5.4L

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The 5.4L V8 in a Lincoln Navigator

Ford Triton Engine A 5.4 L SOHC version is used in Ford Trucks and SUVs and called the Ford Triton Engine. The Triton was on the Ward's 10 Best Engines list for 1997 and 1998 and again for 2000 through 2002. A Roots type supercharger version powered the Ford F-Series Lightning in 2-valve configuration. The 5.4 L 4-valve DOHC version also made an appearance in the limited production Ford Mustang SVT Cobra in 2000, the Ford GT, and the 2007 Shelby Mustang GT500.

The Ford GT uses a highly-specialized version of the Modular engine. It is an all-aluminum dry-sump 5.4 L 4-valve DOHC version with a Twin-screw type supercharger and it showcases numerous technological features, such as dual fuel injectors per cylinder and oil squirters for the piston skirts, not found in other Ford Modular engines. It is rated at 550 hp and 500 ft•lbf though independent testing has shown these numbers to be conservative, with GTs often producing numbers similar to the manufacturer flywheel ratings at the rear wheels on chassis dynamometers. The Shelby GT500 uses a 4-valve DOHC version of the iron-block 5.4 L Triton with an Eaton M122H Roots-type blower and air-to-liquid intercooler. It produces 500 hp and 480 ft•lbf (SAE J1349 certified).


Vehicles equipped with the 5.4 L engine include the following:

2-valve

  • 1997-2004 Ford F-Series, 2-valve SOHC, 260 hp and 350 ft•lbf (ratings for 1999 and later model years)
  • 1997-2004 Ford Expedition, 2-valve SOHC, 260 hp and 350  ft•lbf (ratings for 1999 and later model years)
  • 1997-present Ford E-Series, 2-valve SOHC, 255 hp and 350 ft•lbf (ratings for 1999 and later model years)
  • 1999-2004 Ford Lightning, 2-valve SOHC, Supercharged, 380 hp and 450 ft•lbf (ratings for 2001 and later model years)

3-valve:

  • 2004-present Ford F-Series, 3-valve SOHC, 300 hp and 365 ft•lbf


4-valve:

  • 2000 Ford Mustang SVT Cobra, 4-valve DOHC, 385 hp and 385 ft•lbf
  • 2005–2006 Ford GT, 4-valve DOHC Aluminum Block, Supercharged, 550 hp and 500 ft•lbf
  • 2007 Shelby Mustang GT500, 4-valve DOHC Iron Block, Supercharged, 500 hp and 480 ft•lbf
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6.8L V10

The 6.8 L V10 is another in the modular family. It was created by adding a pair of cylinders to the center of the 5.4 L V8. It uses a balance shaft to smooth the vibrations present due to the added cylinders. Output was initially 265 hp and 405  ft•lbf but output steadily increased over the years, eventually making 362 hp and 457 ft•lbf with the introduction of the 3-valve SOHC version. The Ford V10 was used in the 1997-present Ford E-Series vans, 1999-present Ford F-Series Super Duty, and 2000-2005 Ford Excursion SUVs, as the Ford Triton V10.

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World Record

The Koenigsegg CCR used a modified, Rotrex supercharged Ford Modular 4-valve DOHC 4.6L V8, which produced 806 hp, to achieve a top speed of 241 mph. This certified top speed broke the McLaren F1's long standing world record for fastest production car. The accomplishment was recognized by Guinness World Records in 2005, who gave the Koenigsegg CCR the official title of Worlds Fastest Production Car. This engine is the basis for Koenigsegg's twin-supercharged flexible fuel V8 seen in the CCX. The Koenigsegg record was broken several months later by the $1.3 million Bugatti Veyron 16.4, which is powered by a 1001 hp 8.0 L quad-turbo 16-cylinder engine, when Car and Driver magazine editor Csaba Csere piloted a production Veyron to a 253 mph top speed.

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